| talc | <chemical> A soft mineral of a soapy feel and a greenish, whitish, or grayish colour, usually occurring in foliated masses. It is hydrous silicate of magnesia. Steatite, or soapstone, is a compact granular variety. Indurated talc, an impure, slaty talc, with a nearly compact texture, and greater hardness than common talc. Synonym: talc slate. Origin: F. Talc; cf. Sp. & It. Talco, LL. Talcus; all fr. Ar. Talq. Source: Websters Dictionary (01 Mar 1998) |
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| talc operation | An obsolete operation in which magnesium silicate (talc) powder is applied to the epicardium to create a sterile granulomatous pericarditis and thus promote pericardial anastomoses with the coronary circulation. Synonym: poudrage. (05 Mar 2000) |
| bauxite pneumoconiosis | A condition due to the occupational inhalation of bauxite fumes emitted during the manufacture of alumina abrasives; characterised by cough, shortness of breath, a combined obstructive and restrictive breathing pattern, and impairment of diffusing capacity. Synonym: Shaver's disease. (05 Mar 2000) |
| coal worker's pneumoconiosis | <chest medicine> A form of chronic clung disease which develops after prolonged exposure to coal dust. Advanced disease and scarring is evident on chest X-ray. Symptoms include wheezing, chronic cough and shortness of breath. (27 Sep 1997) |
| collagenous pneumoconiosis | A disease of the lungs, characterised by interstitial fibrosis, caused by inhalation of dusts or toxins in the workplace. (05 Mar 2000) |
| pneumoconiosis | <chest medicine> Fibrosis and scarring of the lungs secondary to the repeated inhalation of dust associated with some occupation. Examples include silica, asbestos and coal dust exposure. (29 Oct 1998) |
| pneumoconiosis of coal workers | Pneumoconiosis seen in coal miners, for example anthracosis, black lung disease (pneumomelanosis). (05 Mar 2000) |
| pneumoconiosis siderotica | Pneumoconiosis caused by inhalation of iron dust. Synonym: pulmonary siderosis. (05 Mar 2000) |